High Energy Physics - Theory

Title:A large spin limit of strings on AdS_5 x S^5 in a non-compact sector

Abstract: We study the scaling law of the energy spectrum of classical strings on AdS_5
x S^5, in particular, in the SL(2) sector for large S (AdS spin) and fixed J
(S^1 \subset S^5 spin). For any finite gap solution, we identify the limit in
which the energy exhibits the logarithmic scaling in S, characteristic to the
anomalous dimension of low-twist gauge theory operators. Our result therefore
shows that the log S scaling, first observed by Gubser, Klebanov and Polyakov
for the folded string, is universal also on the string side, suggesting another
interesting window to explore the AdS/CFT correspondence as in the
BMN/Frolov-Tseytlin limit.